23230013321 has 4 divisors (see below), whose sum is σ = 23230387092. Its totient is φ = 23229639552.

The previous prime is 23230013311. The next prime is 23230013327. The reversal of 23230013321 is 12331003232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5169610000 + 18060403321 = 71900^2 + 134389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23230013321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23230013293 and 23230013302.

It is not an unprimeable number, because it can be changed into a prime (23230013327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68780 + ... + 226253.

It is an arithmetic number, because the mean of its divisors is an integer number (5807596773).

Almost surely, 2^23230013321 is an apocalyptic number.

It is an amenable number.

23230013321 is a deficient number, since it is larger than the sum of its proper divisors (373771).

23230013321 is an equidigital number, since it uses as much as digits as its factorization.

23230013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373770.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23230013321 its reverse (12331003232), we get a palindrome (35561016553).

The spelling of 23230013321 in words is "twenty-three billion, two hundred thirty million, thirteen thousand, three hundred twenty-one".